feat: continue assigned approvals into merge (#240)

frontend/index.html

@@ -113,6 +113,9 @@ textarea { resize: vertical; min-height: 120px; }
 .review-handoff button { min-height:44px; }
 .review-handoff-link { min-height:44px; display:flex; align-items:center; justify-content:center; border:1px solid #60a5fa; border-radius:8px; color:#bfdbfe; font-weight:700; text-decoration:none; }
 .review-handoff-link[hidden] { display:none; }
+.review-merge-continuation { position:sticky; bottom:0; z-index:5; padding:10px 4px; padding-bottom:calc(10px + env(safe-area-inset-bottom)); background:rgba(11,21,38,.98); }
+#continue-review-to-merge { min-height:44px; width:100%; }
+#continue-review-to-merge[hidden] { display:none; }
 .review-copy-fallback { min-height:140px; }
 .review-progress-actions { position:sticky; bottom:0; z-index:2; display:flex; align-items:center; justify-content:space-between; gap:10px; margin:8px -4px 0; padding:10px 4px; background:rgba(11,21,38,.96); border-top:1px solid #2a496e; }
 .review-progress-actions button { min-height:44px; max-width:100%; }
@@ -707,6 +710,9 @@ textarea { resize: vertical; min-height: 120px; }
         <textarea class="review-copy-fallback" id="review-copy-fallback" readonly hidden aria-label="Feedback to copy manually"></textarea>
         <a class="review-handoff-link" id="review-handoff-link" target="_blank" rel="noopener noreferrer" hidden>Continue to Gitea</a>
       </div>
+      <div class="review-merge-continuation">
+        <button id="continue-review-to-merge" type="button" hidden>Continue to merge</button>
+      </div>
     </section>
     <h2>Review history</h2>
     <div id="review-history" class="muted"></div>
@@ -2119,6 +2125,7 @@ textarea { resize: vertical; min-height: 120px; }
     qs('#review-handoff-link').href = item.url;
     qs('#review-handoff-status').textContent = '';
     qs('#review-submit-status').textContent = '';
+    qs('#continue-review-to-merge').hidden = true;
     qs('#submit-review').disabled = true;
     closeInlineComposer();
     draft = null;
@@ -3133,12 +3140,21 @@ textarea { resize: vertical; min-height: 120px; }
     button.disabled = true;
     qs('#review-submit-status').textContent = 'Submitting review…';
     try {
+      const item = selectedReview;
+      const progressSnapshot = progress?.snapshot() || { reviewed: [] };
       const result = await reviewController.submit(selectedReview, {
         decision: snapshot.decision,
         body: createReviewController.formatFeedback(snapshot, reviewFiles),
         expected_head_sha: selectedReviewHead,
         comments: snapshot.comments,
       });
+      const canContinueToMerge = createReviewController.prepareMergeContinuation({
+        storage: localStorage,
+        item,
+        headSha: selectedReviewHead,
+        reviewed: progressSnapshot.reviewed,
+        decision: snapshot.decision,
+      });
       draft.clear();
       progress?.clear();
       qs('#review-decision').value = 'comment';
@@ -3146,15 +3162,25 @@ textarea { resize: vertical; min-height: 120px; }
       document.querySelectorAll('.review-note').forEach(note => { note.value = ''; });
       if (progress) showReviewProgress(progress.snapshot());
       qs('#review-submit-status').textContent = 'Review submitted · ' + (result.state || 'complete') + '.';
-      await load();
-      if (workSession.active()) workSession.complete();
-      else button.focus();
+      if (canContinueToMerge) {
+        qs('#continue-review-to-merge').hidden = false;
+        qs('#continue-review-to-merge').focus();
+      } else {
+        await load();
+        if (workSession.active()) workSession.complete();
+        else button.focus();
+      }
     } catch (error) {
       qs('#review-submit-status').textContent = error.message + ' Your draft is safe; retry or open in Gitea.';
       button.disabled = false;
       button.focus();
     }
   });
+  qs('#continue-review-to-merge').addEventListener('click', () => {
+    const item = selectedReview;
+    if (!item) return;
+    workRoute.open({ ...item, kind:'pull', is_review:false }, { replace:true });
+  });
   qs('#copy-review-feedback').addEventListener('click', async () => {
     if (!draft || !selectedReview || reviewHandoffPending) return;
     reviewHandoffPending = true;

frontend/review-sheet.js

@@ -309,6 +309,18 @@ async function copyAndContinue({ text, url, copy, open, fallback }) {
   return { copied: true, opened: true };
 }
 
+function prepareMergeContinuation({ storage, item, headSha, reviewed, decision }) {
+  const reasons = Array.isArray(item?.work_reasons) ? item.work_reasons : [];
+  if (decision !== 'approve' || !reasons.includes('assigned_to_me') || !headSha) return false;
+  const filenames = Array.isArray(reviewed)
+    ? reviewed.filter(filename => typeof filename === 'string' && filename)
+    : [];
+  const key = 'stackchain.pull-review.v1:' + item.repository + '#' + item.number + ':' + headSha;
+  try { storage?.setItem(key, JSON.stringify(filenames)); }
+  catch (_error) { return false; }
+  return true;
+}
+
 createReviewController.renderDiffFile = renderDiffFile;
 createReviewController.parseDiffLines = parseDiffLines;
 createReviewController.toggleDiff = toggleDiff;
@@ -316,6 +328,7 @@ createReviewController.createProgress = createProgress;
 createReviewController.createDraft = createDraft;
 createReviewController.formatFeedback = formatFeedback;
 createReviewController.copyAndContinue = copyAndContinue;
+createReviewController.prepareMergeContinuation = prepareMergeContinuation;
 
 if (typeof module !== 'undefined' && module.exports) {
   module.exports = createReviewController;

frontend/service-worker.js

@@ -1,4 +1,4 @@
-const CACHE = 'stackchain-dashboard-shell-v8';
+const CACHE = 'stackchain-dashboard-shell-v9';
 const OUTAGE_STATUSES = new Set([500, 502, 503, 504]);
 const BASE = new URL('./', self.location.href).pathname;
 const SHELL = [